Ever wondered what it's like to swim alongside a creature the size of a bus? Travel journalist Janna Graber takes you into Mexico's Sea of Cortez, where juvenile whale sharks up to 32 feet long cruise the crystalline waters just minutes from shore. From the heart-pounding moment of dropping into the sea to swimming alongside these gentle giants at three miles per hour, discover why La Paz is the ultimate bucket-list destination for wildlife encounters. Plus, learn the surprising regulations that protect these magnificent creatures and why you only get 30 precious minutes to experience the magic. Read the full adventure story, "Swimming with Whale Sharks in the Sea of Cortez," with stunning underwater photography.